/* Test Series Tabs & Cards Section */

:root {
    --primary-color: #9E7FD4;
    --primary-dark: #9672d4;
    --primary-light: #e0e7ff;
    --success-color: #10b981;
    --warning-color: #f59e0b;
    --danger-color: #ef4444;
    --text-primary: #1f2937;
    --text-secondary: #6b7280;
    --border-color: #e5e7eb;
    --bg-light: #f9fafb;
    --white: #ffffff;
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
}


/* Test Series Section */

.testseries-section {
    padding: 60px 0;
    background: linear-gradient(135deg, #f9fafb 0%, #f3f4f6 100%);
}


/* Tabs Container */

.testseries-tabs-container {
    margin-bottom: 40px;
}

.testseries-tabs {
    display: flex;
    gap: 12px;
    border: none;
    background: transparent;
    padding: 0;
    margin-bottom: 30px;
    flex-wrap: wrap;
    align-items: center;
}

.testseries-tabs .nav-link {
    padding: 12px 24px;
    border: 2px solid var(--border-color);
    border-radius: 8px;
    font-weight: 600;
    font-size: 14px;
    color: var(--text-secondary);
    background: var(--white);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    cursor: pointer;
    position: relative;
    white-space: nowrap;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.testseries-tabs .nav-link:hover {
    border-color: var(--primary-color);
    color: var(--primary-color);
    box-shadow: var(--shadow-sm);
    transform: translateY(-2px);
}

.testseries-tabs .nav-link.active {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
    color: var(--white);
    border-color: var(--primary-dark);
    box-shadow: 0 4px 12px rgba(99, 102, 241, 0.3);
}

.testseries-tabs .nav-link.active::after {
    content: '';
    position: absolute;
    bottom: -8px;
    left: 50%;
    transform: translateX(-50%);
    width: 30px;
    height: 3px;
    background: linear-gradient(90deg, var(--primary-color), var(--primary-dark));
    border-radius: 2px;
}


/* Cards Grid */

.testseries-cards-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 24px;
    animation: fadeIn 0.4s ease-in-out;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}


/* Test Series Card */

.testseries-card {
    background: var(--white);
    border-radius: 12px;
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    display: flex;
    flex-direction: column;
    height: 100%;
    position: relative;
    border: 2px solid var(--border-color);
}

.testseries-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-color), var(--primary-dark));
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.3s ease;
    border: 2px solid var(--border-color);
}

.testseries-card:hover {
    box-shadow: var(--shadow-lg);
    transform: translateY(-8px);
}

.testseries-card:hover::before {
    transform: scaleX(1);
}


/* Card Badge */

.card-badge {
    position: absolute;
    top: 16px;
    left: 16px;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    color: var(--white);
    padding: 6px 12px;
    border-radius: 6px;
    font-size: 11px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    z-index: 10;
    box-shadow: 0 2px 8px rgba(99, 102, 241, 0.3);
}

.card-badge.new {
    background: linear-gradient(135deg, var(--danger-color), #dc2626);
}

.card-badge.popular {
    background: linear-gradient(135deg, var(--warning-color), #d97706);
}


/* Card Image */

.card-image {
    width: 100%;
    height: 200px;
    background: linear-gradient(135deg, var(--primary-light) 0%, #dbeafe 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    position: relative;
}

.card-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.card-image-placeholder {
    font-size: 48px;
    color: var(--primary-color);
    opacity: 0.3;
}


/* Card Content */

.card-content {
    padding: 24px;
    flex-grow: 1;
    display: flex;
    flex-direction: column;
}

.card-title {
    font-size: 18px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 12px;
    line-height: 1.4;
}

.card-description {
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: 16px;
    flex-grow: 1;
}


/* Card Features List */

.card-features {
    list-style: none;
    padding: 0;
    margin: 16px 0;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.card-features li {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    font-size: 13px;
    color: var(--text-secondary);
    line-height: 1.5;
}

.card-features li::before {
    content: '✓';
    color: var(--success-color);
    font-weight: 700;
    flex-shrink: 0;
    margin-top: 2px;
}


/* Card Footer */

.card-footer {
    padding: 16px 24px 24px;
    border-top: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
}

.card-price {
    display: flex;
    align-items: baseline;
    gap: 8px;
}

.card-price-original {
    font-size: 14px;
    color: var(--text-secondary);
    text-decoration: line-through;
}

.card-price-current {
    font-size: 24px;
    font-weight: 700;
    color: var(--primary-color);
}

.card-price-currency {
    font-size: 16px;
}

.card-discount {
    background: linear-gradient(135deg, var(--success-color), #059669);
    color: var(--white);
    padding: 4px 8px;
    border-radius: 4px;
    font-size: 12px;
    font-weight: 600;
    white-space: nowrap;
}


/* Card Actions */

.card-actions {
    display: flex;
    gap: 12px;
    margin-top: 16px;
}

.btn-explore,
.btn-buy {
    flex: 1;
    padding: 12px 16px;
    border: none;
    border-radius: 8px;
    font-weight: 600;
    font-size: 14px;
    cursor: pointer;
    transition: all 0.3s ease;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

.btn-explore {
    background: var(--white);
    color: var(--primary-color);
    border: 2px solid var(--primary-color);
}

.btn-explore:hover {
    background: var(--primary-light);
    transform: translateX(-2px);
}

.btn-buy {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    color: var(--white);
    box-shadow: 0 4px 12px rgba(99, 102, 241, 0.3);
}

.btn-buy:hover {
    box-shadow: 0 6px 16px rgba(99, 102, 241, 0.4);
    transform: translateY(-2px);
}


/* Empty State */

.empty-state {
    text-align: center;
    padding: 60px 20px;
    color: var(--text-secondary);
}

.empty-state-icon {
    font-size: 48px;
    margin-bottom: 16px;
    opacity: 0.3;
}

.empty-state-text {
    font-size: 16px;
    margin-bottom: 8px;
}


/* Responsive Design */

@media (max-width: 768px) {
    .testseries-section {
        padding: 40px 0;
    }
    .testseries-tabs {
        gap: 8px;
        margin-bottom: 24px;
    }
    .testseries-tabs .nav-link {
        padding: 10px 16px;
        font-size: 12px;
    }
    .testseries-cards-grid {
        grid-template-columns: 1fr;
        gap: 16px;
    }
    .card-content {
        padding: 16px;
    }
    .card-image {
        height: 160px;
    }
    .card-title {
        font-size: 16px;
    }
    .card-price-current {
        font-size: 20px;
    }
    .card-actions {
        flex-direction: column;
    }
}

@media (max-width: 480px) {
    .testseries-tabs {
        gap: 6px;
    }
    .testseries-tabs .nav-link {
        padding: 8px 12px;
        font-size: 11px;
    }
    .card-image {
        height: 140px;
    }
    .card-content {
        padding: 12px;
    }
    .card-title {
        font-size: 14px;
    }
    .card-features li {
        font-size: 12px;
    }
}